Rotary engine.



E. E. UNDENBEIN.

ROTARY ENGINE.

APPLxcATioN FILED Aus.ao, |916.

WITNESSES ATTORNEY yE. E. LINDENBEIN. ROTARY ENGINE.

APPLICATION FILED AUG. 30,1916.

Patented Feb. 11, 1919.

2 SHEETS-SHEE 2.

INVENTOR WITNESSES ZW I. Iv..

' ATTORNEY- ROTARY ENGINE.

Specification of Letters Patent.

Patented Feb. 11, 191e.

Application filed August 30, 1916. Serial N o. 117,753.

' T o all whom t may concern:

Be it known that I, EDWIN E. LINDEN- BEIN, a subject of theGerman Emperor, residin at Allentown, in the county of Lehigh and tate of Pennsylvania, have invented certain new and useful Improvements in Rotary Engines, of which the following is a specication.

This invention relates to rotary steam engines and it is the primary object of the invention to provide a steam engine having an improved form of valve control means, whereby, the motive fluid will be automatically admitted to and from the rotor or steam chamber, thus, driving the rotor.

The nature of the invention more explicitly set forth, resides in the construction of the rotor or steam chamber, and the provision of the rotary cut-off valve; the rotor chamber being arranged eccentric to the axis of the rotor, while the rotary cutoff valve is carried by the rotor shaft and is provided with a plurality of ports therein, which alternately register with'the intake and exhaust ports of the engine, consequently, automatically controlling the passage of the teain to and from the rotor or steaml cham- The invention also aims to provide auxiliary exhaust ports, these ports being arranged in the engine housing or casing, whereby, the exhaust of the spent steam will be facilitated.

The invention also embraces novelly formed intake and exhaust ports, the same being of such contour as will cause the ingress and egress of steam to be cut off..

The improvements in the details and arrangement of parts will be apparent from an inspection of the accompanying drawings, inconnection with the specific description hereinafter contained, and wherein the preferred embodiment of the invention is illustrated for the purpose ,of imparting a full understanding of the invention.

In the drawings Figure 1 is a vertical transverse section through my improved steam engine taken on the line 1-1 of Fig. 2.

Fig. 2v is a side elevation othereof with parts of the device removed and showing the arrangement of the rotor chamber and the rotor with its sliding abutment as shown on the line 2-7-2 of Fig. 1, looking in the direction of theA arrows.

Fig. 3 is a side elevation partly in section showing the arrangement of the intake and exhaust. ports within one wall of the casing as shown on the line 3-3 of Fig. 1 looking in the direction of the arrows.

Fig. 4 is a side elevation partly in section showing the spring packing for the sliding abutment.

Fig. 5 is a detail in perspective of the rotor chamber packing strip.

Referring' more specifically to the drawings, wherein like reference numerals designate corresponding parts in the several views, I provide a rotor housing o'r casing, indicating the same in its entirety by the numeral 1, which casing comprises a substantially cylindrical body having laterally offset seats 2 and 3 arranged upon the base thereof, thus, providing for means whereby the same may be secured to a suitable base or other support by means of bolts or other fastening devices as at 4:. -Circumferentially extending iianges 5 are arranged upon either side of the casing and have arranged therein openings generally indicated as 6, for receiving securing screws 7, the purpose of which will be subsequently described. A

rotor chamber 8 is arranged within the casing 1 and has arranged in the upper portion of its wall, a series of openings 9, these openings serving as auxiliary exhausting ports whereby the spent steam may be passed from the same. Circular plates 10 and 11 are received by the side portions of the casing l and are secured thereto through the medium of the screws 7, which screws are passed through the openings 6 as arranged in the circumferential flanges 5, into complementally threaded openings, formed within theannulariextending portions 12 and 13 of the plates 10 and 11, respectively. It is to be noted that the plates 10 and 11 are of the double wall type and have arranged upon their inner or adjacent faces, annular recesses 14 and 15, the purpose o which will be subsequently apparent. Bearingy openings 16 and 17 are formed in the plates 10 and 11 and as will be obvious, these openings are eccentric to the longitudinal axis of the Vrotor chamber 8, this being attributable to the arrangement of the said chamber in relation to the side portions of the casing 1. The plate l0 has arranged within its inner wall, tapered slots 18 and 19, the former communicating with the in- While the latter communicates `with uthe ex haust pipe or opening 2 0 and constitutes the exhaust port.

A rotor 22 is arranged within therotor chamber 8 and is provided with stub sup'- porting shafts 23 and 24.1 which shafts are received by the openings '16 and v17 as ar# ranged within the bearing plates :lO-and 11.

The rotor 22 is hollow and has formed therein a diametrically extending slot125, which receivesvtherethrough a sliding: element 26, the oppositek extremities of which serve as abutments-forthe steamy or other motive fluid. The outer extremitiesofthe sliding element 26'arebifurcated as at' 27 and28 and have arranged therein, packing strips 29, which strips are normally :held in engagement'with the adjacent face offthe rotor chamber byineans of arcuatesprings 30 which are arranged inv said bifurcated portions 27 and 28 beneath ytheir:respective f packing strips 29. The circumferentially extensling Wall ofthe .rotor"chaniber *has arranged therein, a packing `strip31to aiford aliuid tight :joint/between fthe intake and exhaust portions ofthe rotor'chamber.

lReferringnovv tothe vvalve control mechanism, -this f'construction .provides for means whereby ythe ingress and egress of steam Ato and from the rotorchamber '8.is controlled, Ifaiiix to one` side of therotor 2,2,.a2'bearing `plate 32, 4this plate 'being snugly receivedgby Vthe side portions of ,the casing 1 in suitably Irecessed portionsformed therein; Set screws 3 3 are-passedzthroughfthe plate at points in proximity to the center -thereof and are received 'by the adjacent portions of therotorf22, thus, securely aflixing the same `to. the latter. The heads of the set screws 33 extend beyond the outer face of the bearingeplate 32 .and are received :by 4the annular recessed portions '14. Upon the remaining side ofthe rotor, 'I aliix a similar disk-like plate 34, by means of vset screws 35,vwhich are in turn received by the adjacent portion ofthe rotor. Within the plate 34,1 arrange a pair of diametrically arranged tapering slots 36 and 37, these slotsbeing adapted for alternate fregistration with theintake and exhaust ports 18` and 19, whereby, the necessary motive fluid maybe introduced into thevrotor chamber 8 and may be then exhausted therefrom. The heads .of V'the set screws 35 are -.received .by the vannular recessed porti-ons 15 as arrangedwithinffthe plate l0, thus,.permitting the rotation of the Arotor and the-plates. providing the tapering slots 36 Y and 37 within. the rotatabledisk 34, v it is evident, that ythe steam will beadmitte'd totherotor chamber from the intake port 18 and will be exhausted Ytherefrom through Ithe exhaust port 1 9 andthen through the pipe 2111to the atmosphere, fm Y' The operation of the -jconstruction may be reviewedas'followszv`Steam is passed throughthe lpipe 20 into the double ywalled plate 10 and is then introduced through the intake port 18 as arranged in said plate into the rotor or steam chambers, whereupon, i@ engageant a@ adjacent abutment as formed upon'the slid- Aable;element:26.:andfforces the rotor around upon its axis. Upon continued travel of the rotor, one of 'the taperinglslots361er 3:7 f

Willpregister withv the tapering .exhaust port 19 and will permit a larger portion of the deady steam to vbe .exhausted K therethlQugh andpassed `through the vexhaust pipe l21 and into the atmosphere. v,Before a completeexfV haustion of v.the dead steaml is had, it will be obvious that the diameterically Vpositioned openings arranged within the headsfizxrll register .with .the intake .port .18.;and that a fresh charge of live steam is .ad-mitedwto the l.rotor-.chamber 8 and engages the reina-ining extremity of the` sliding .element which vvconstitutesan eilicient abutm vttherefor, .and .causesxthef rotation Orth mieli-Z2 toybe continuous. It-is evident, rthat -yvhena complete exhaustion offfthedeadsteam has been made, l'the :slidable` :element 26, ygil;l assume fa substantially vertical position within `the Yinter chamber v8 and 'the 131D# per -.;portion thereof will -gbe y-fiush with the periphery oft .the `rotor 22, 'th11S, allQWfilg the same to passpthe joint adj acent, .the 'peeking strips A31.` Asrotation continues, `that portion ofthe slidable Aelement 26,,ashadV tact with the circumferential wall of the chamber .-8, this being attributable 'sto the. eccentric yair-'rwegennet.1t ofthe roter-*f2.2 Meth' relation -to the rotor chamber8:y fiAt point, the intake opening'as adjacent .th s

portion of the slidable elem-ent 26 will register with the inta-ke portlS rand adlint a charge of .steam-into :the chamberfS, `while' the dead steaml is being vexhausted, there# from.

fllVhile I have herein disclosedthe specific embodiment of the invention, vit will be apparent to persons skilled in the art, ,that .the invention is capable of'embodiment 1n. other forms :and devices differing in vdetail andarrangement 'fromthat shown, as may llee-,ill Y kan las

tor Working Within a chamber therein, said chamber being arranged eccentric to the axis of the rotor, tapering slots formed within said easing and constituting intake and exhaust thereof, a slidabie element carried said rotor, the opposite extremities of said "element roviding for abutments, andfa disk movab e With the rotor having tapering slots formed therein Vand arranged/in diametrically opposite positions adjacentflsaid slidin element, said slots being alternately reglsterable within said intake and exhaust ports of the easing 'and communicating with the rotor chamber.

3. In a rotary engine, the combination of a casingincluding a rotor chamber, a rotor rotatably mounted Within said chamber, a

one-piece slidingelement movably mounted through said'rotor, a plate connected to one side of saidfrotfo, a disk connected to the opposite side'ofsaid rotor, said sliding element beinginovably mounted between said plate and disk, thus reducing frictional action upon said sliding element as the same is reciprocated when said rotor is rotating, said casing having' intake and exhaust ports formed therethrough, said disk having intake and exhaust'v ports formed therethrough, thus causingfltheports of said disk to alternately register with the ports of said casing.

In testlmony y'i'fhereof I affix my signature 35 in presenceof two Witnesses.

EDWIN EMIL LINDENBEIN. Witnesses: f

Enom:2 H. y BLANK, WILLIAM KNOBLACH.,

Copie: of this patent may be obtained for ave cents eah, by addressing the Commissioner ot latentl,

Washington, n.17. 

